- The US Department of Defense is the second-largest consumer of renewable electricity in the world. Only Google buys more.

- The US DoE offers incentives for the purchase of LED lights in 48 states because the agency considers the widespread adoption of the technology essential: "LED lights offer the greatest potential impact on energy conservation in the country."

- Installed residential solar is declining in California (down about 6%) but burgeoning in other areas, like Texas.

- China installed 20 gigawatts (GW) of solar power capacity in the first half of 2016, three times as much as the same period a year ago